Intangible Assets, Net (Tables)

12 Months Ended

Jan. 03, 2020

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

Intangible assets, net consisted of the following at January 1, 2021 and January 3, 2020 (in thousands):

	2020							2019
Long-lived amortized intangible assets	Gross Carrying Amount		Accumulated Amortization			Net		Gross Carrying Amount		Accumulated Amortization			Net
Patents and licenses	$	9,382	$	(9,112	)	$	270	$	9,353	$	(9,057	)	$	296

Finite-lived Intangible Assets Amortization Expense

Amortization expense for intangible assets were as follows (in thousands):

	Years Ended
	2020		2019		2018
Amortization expense	$	35	$	34	$	34

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Future amortization of intangible assets is as follows (in thousands):

Year Ended	Amount
2021	$	36
2022		36
2023		36
2024		36
2025		36
Thereafter		90
Total	$	270